Gas-regulator.



No. 824,413, PATIINIBD JUNI 26, 190e.

G. E. GROOKSHANK.

GAS REGULATOR.

APPLICATION FILED MAR.20.1906.

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GEORGE E. cRooxs'HAN-K, or ritiprANA, rjaNNfsYLv-ANIA, Ass'reivon or* ONE-HALF ro KATE onooxsnanx, on iNnniNA, PENnsriavnnrn.L

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Application nea March 20,1906. serial No. l306,956.

1'0 all whom, it mag/concern.-

Be it known that I, GEORGE CRooxin Gas-Regulators, of which the following isa specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in gas-regulators; and the invention has for its primary object the provision of novel means for lautomatically controlling the valve 'of a gas-supply pi e, whereby when the gas-pressure within t e pipe is reduced the valve will be automatically shut.

My invention aims to provide a gas-regulator particularly adapted to be used in residences where artificial or natural gas is used for illuminating and fuel purposes.

It is a well-known fact that the gas-pressure is often reduced in the main supply-pipe, whereby a light or iir'e is extinguished, and when assuming its normal pressure the gas escapes and is liable to 'asphyxiate the occupants of a compartment in which the gas is used. To prevent such an occurrence, I have devised a regulator which is actuated by a reduction in the pressure of gas to close a valve and prevent the gas Jrom escaping should it be returned to its normal pressure.

In constructing my improved regulator I have aimed to use as simple and inexpensive a construction as possible, at the same time maintaining a strong and durable construction and providing an article that is particularly intended for use in residences.

Vith the above and other objects in view, which will more readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination, and arrangement of parts to be hereinafter more fully described and claimed, and referring to the drawings accompanying this application like numerals of reference designate corresponding parts throughout the several views, in whic Figure 1 is a vertical sectional view of my improved regulator. Fig. 2 is a plan oi the same, and Fig. 3 is an elevation of an adjusting device used in connection with the regulator.

To put my invention into practice, I. COD.-

struct my improved regulator of a substantially rectangular casing 1, through which passes a gas-supply pipe 2, carrying a T -co'nnection 3 within the casing.v They one -end, "of the pipe 2 is provided with a lconventional form of valve 4, having a winged plug 5. The

opposite end of the pipe2 is threaded, as vat 6, whereby a pipe- (not shown)l may beconnected theretoy to lead to a suitable burner.

Secured to the T connection 3 within the casing 1 is a bellows 7 of a conventional form,

said bellows being provided with a central post :or standard 8, which protrudes through an opening 9, formed in the top ofthe casing 1. The one end of the casing 1 is provided with a bracket 10, in which is pivotally mounted or hinged the one end of a rod l11, said rod being pivotally connected, as at 12, to the post or standard 8 of the bellows 7,. The opposite end of the casing 1 is ,provided with an upwardly-extending,slotted arm 14, to which is slidably connected a, slotted plate 15, said .plate being provided with a lug 16 to engage` the arm 14 and with a dependingv lug 17, which is adapted to support the plate upon the top of the casing 1. The plate15 has its lower edge bent outwardly, as at18, to assist in supporting said plate upon the top of the casing 1. The plate 15 is provided with a set-screw 19, whereby it can be adjusted and locked in engagement with the arm 14.

The forward end of the rod 11 is adapted to pass through the slotted plate 15 and is connected to one edge of the winged plug 5 by a resilient rod 20, the lower end of said rod being connected to the one edge of the winged plug 5, as at 21. The rod 11 is provided with an adjustable Weight 22, whereby the operation of my improved regulator may be varied according to the normal pressure of gas within the pipe 2.

The slotted plate 15 can be provided with cushions 23 23 to relieve any jarring of the regulator by the rod being suddenly elevated or lowered.

In operation the normal pressure of the gas within the pipe 2 is adapted to maintain the bellows 7 in an expanded position, whereby the one end of the rod 11 will be normally elevated, maintaining the valve 4 in an open position and permitting gas to pass through the pipe 2. Should, Jfor any unforeseen reason, the pressure of gas within the IOO pipe 2 be reduced, the bellows is adapted to close according to the reduction of the gaspressure and through the medium of the standard 8 lower the rod 11, which, through the medium of the resilient arm 20, partially closes the valve 4. Should the pressure within the pipe 2 be entirely shut oil', the collapse of the bellows will immediately close the valve 4 through the medium of the rod 1 1 and the resilient arm 20. The adjustable weight 22, carried by the rod 11, is adjusted according to the pressure of gas Within the pipe 2 and is adapted to facilitate the colapse of the bellows 7 in case the pressure within the pipe 2 is reduced. Should the bellows 7 suddenly collapse and the forward end of the rod l1 descend, the resiliency of the arm 20 prevents said arm from being broken, while the lowermost cushion 23 of the slotted plate 15 is adapted to prevent the rod 1 1 from jarring the regulator, The downward ,movement of the rod 11 can be easily limited by adjusting the slotted plate 15 upon the arm 14, and in this manner the closing of the valve 4 can be easily regulated.

The comparatively few parts used in connection with my improved regulator, together with the simplicity of the same, prevents the parts thereof from becoming disordered or broken by constant use.

I preferably construct the regulator of strong and durable metal, while the bellows is of the ordinary construction, generally constructed of some flexible material connecting two heads.

Such changes in the construction and operation of 'my improved regulator as are permissible by the appended claims may be resorted to without departing from the spirit and scope of the invention.

What I claim, and desire to secure by Letters Patent, is-

1. In a gas-regulator, the combination with a gas-supply pipe, and a valve carried by said pipe, of a casing surrounding a portion of said pipe in close proximity to said valve, a bellows mounted within said casing and connecting with said pipe, a standard carried by said bellows and protruding through the top of said casing, a rod pivotally mounted upon the top of said casing and connecting with said standard, a resilient rod connecting the end of the first-named rod with the plug of said valve to partially rotate said plug when said rod is raised and lowered by said bellows, means to regulate the movement of said bellows, and means to limit the movement of the first mentioned rod, substantially as described.

2. In a gasregulator, the combination with a gas-supply pipe and a valve carried by said pipe, of a casing surrounding a portion of said pipe, and a bellows mounted within said casing and connecting with said pipe, a rod mounted upon the top of said casing and connecting with said bellows, a resilient ro'd connecting the first-'mentioned rod with said valve, to operate said valve when the firstmentioned rod is raised and lowered by said bellows, substantially as described.

ln testimony whereof I affix my signature in the presence of two witnesses.

GEORGE E. CROOKSHANK. Witnesses:

JAMES W. MACK, A. M. WONDER. 

